diff options
Diffstat (limited to 'tap.h')
| -rw-r--r-- | tap.h | 16 |
1 files changed, 16 insertions, 0 deletions
@@ -6,6 +6,20 @@ #ifndef TAP_H #define TAP_H +/* + * TCP frame iovec array: + * TCP_IOV_VNET vnet length + * TCP_IOV_ETH ethernet header + * TCP_IOV_IP IP (v4/v6) header + * TCP_IOV_PAYLOAD IP payload (TCP header + data) + * TCP_IOV_NUM is the number of entries in the iovec array + */ +#define TCP_IOV_VNET 0 +#define TCP_IOV_ETH 1 +#define TCP_IOV_IP 2 +#define TCP_IOV_PAYLOAD 3 +#define TCP_IOV_NUM 4 + /** * struct tap_hdr - L2 and tap specific headers * @vnet_len: Frame length (for qemu socket transport) @@ -74,6 +88,8 @@ void tap_icmp6_send(const struct ctx *c, const void *in, size_t len); int tap_send(const struct ctx *c, const void *data, size_t len); size_t tap_send_frames(const struct ctx *c, const struct iovec *iov, size_t n); +size_t tap_send_iov(const struct ctx *c, struct iovec iov[][TCP_IOV_NUM], + size_t n); void eth_update_mac(struct ethhdr *eh, const unsigned char *eth_d, const unsigned char *eth_s); void tap_listen_handler(struct ctx *c, uint32_t events); |